001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.camel.component.bean; 018 019import org.apache.camel.Converter; 020import org.apache.camel.Exchange; 021import org.apache.camel.FallbackConverter; 022import org.apache.camel.TypeConverter; 023import org.apache.camel.spi.TypeConverterRegistry; 024 025/** 026 * A set of converter methods for working with beans 027 */ 028@Converter 029public final class BeanConverter { 030 031 private BeanConverter() { 032 // Helper Class 033 } 034 035 @FallbackConverter 036 public static Object convertTo(Class<?> type, Exchange exchange, Object value, TypeConverterRegistry registry) { 037 // use a fallback type converter so we can convert the embedded body if the value is BeanInvocation 038 if (BeanInvocation.class.isAssignableFrom(value.getClass())) { 039 040 BeanInvocation bi = (BeanInvocation) value; 041 if (bi.getArgs() == null || bi.getArgs().length != 1) { 042 // not possible to convert at this time as we try to convert the data passed in at first argument 043 return Void.TYPE; 044 } 045 046 Class<?> from = bi.getArgs()[0].getClass(); 047 Object body = bi.getArgs()[0]; 048 049 // maybe from is already the type we want 050 if (type.isAssignableFrom(from)) { 051 return body; 052 } 053 054 // no then try to lookup a type converter 055 TypeConverter tc = registry.lookup(type, from); 056 if (tc != null) { 057 return tc.convertTo(type, exchange, body); 058 } 059 } 060 061 return null; 062 } 063 064}